Finding the Fourth Proportional to 22,061.76, 30,439.08 and 12,629.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,061.76 : 30,439.08 = 12,629.76 : x
2. Step 2: Convert to fraction form
   22,061.76/30,439.08 = 12,629.76/x
3. Step 3: Cross multiply
   22,061.76x = 30,439.08 × 12,629.76
4. Step 4: Simplify right side
   22,061.76x = 384,438,275.02
5. Step 5: Solve for x
   x = 384,438,275.02/22,061.76
6. Step 6: Final answer
   x = 17,425.55